Replace of injectIntl with useIntl() 9/10

[diana-villalvazo-wgu]

Description

Replace all usages of the deprecated injectIntl HOC with the useIntl() hook from @edx/frontend-platform/i18n.

Files to refactor:

• src/account-settings/delete-account/DeleteAccount.jsx
• src/account-settings/delete-account/DeleteAccount.test.jsx
• src/account-settings/delete-account/ConfirmationModal.jsx
• src/account-settings/delete-account/ConfirmationModal.test.jsx
• src/account-settings/BetaLanguageBanner.jsx